By presentation of the voucher for payment of the rental bond (colloquially deposit) you will receive the keys for your room as well as a copy of the checklist by the competent caretaker. The previous tenant has paid the rent until his expiration of contract for the room and may thus use the room until the last workday. Therefore, it is not possible that you receive the room key before the first workday of your inception of treaty.
Due to the mostly smooth handovers of the rooms it may besides happen that repairs (e.g. a new wall coat etc.) can only be carried out within the first two weeks of your tenancy agreement.
A handing over of the room keys is basically not possible at weekends and holidays. We therefore we ask for your understanding.